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Sagot :

Réponse :2a)suite -2²+ (-2) -2= 4 +-4=0

1b) f(x)=4 quand x= -3 et 2

2b) -3²+ (-3) -2=4

9+ -5 =4

2²+2-2=4

(4+2) -2=4

6-2=4

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